Modeling-machine.



W. SPILLER.

MODELING MACHINE.

APPLIOATION FILED JUNE 13, 1910.

999,270; Patented Aug. 1, 1911 WEESES:

MITD STATES ATENT @FFIQ.

WILHELM SPILLER, 0F BERLIN, GERMANY, ASSIGNOR TO THE FIRM OF PULVER- MAGHER 8E BREMERMANN G. M. B. I-LL, OF BERLIN, GERMANY.

MODELING-MACHINE.

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Specification of Letters Patent.

Patented Aug. 1, 1911.

Application filed June 13, 1910. Serial No. 566,686.

To all whom it may concern:

Be it known that I, VVILHELM SPILLER, a subject of the King of Prussia and Emperor of Germany, residing at 29 Banibergerstrasse, Berlin, in the Kingdom of Prussia and Empire of Germany, have invented a new and useful Improved Modeling-Machine, of which the following is a specification.

This invention relates to a machine for the forming of toy and teaching models out of plastic material such as plaster by means of formers. The invention is devised es pecially for producing these goods for games and for school purposes, and enables the operator to produce by means of a few formers a large variety of round, polygonal and flat models, which are especially, valuable for technical and other higher education school purposes. The plastic material is placed either upon a rotating or a fixed shaft, or upon a flat metal plate and is then shaped by means of a former.

The invention comprises the features hereinafter set forth, and is illustrated in the accompanying drawing in three figures as follows:

Figure 1 shows a front elevation. Fig. 2 a side elevation, the former being vertical. Fig. 3 a section on the line A-A of Fig. 1, the former being placed inclined.

Upon the bed plate 1 are secured side supports 2 in which at the top the shaft 4 is supported. The shaft possesses at one end a dividing disk 5 with crank 6. Thereis also provided a fixing device 7 engaging in perforations of the said disk, by means of which device the shaft can be fixed after a given turn. On the other side the shaft a is se cured against the side support 2 by means of a nut 8. This side support is pivoted on a hinge piece 9 so that when the nut 8 is released it folds down into the position indicated in dotted lines in Fig. 1, whereupon the finished model can be withdrawn from the shaft 4. In order to facilitate this withdrawal, the shaft 4 is tapered toward the nut 8, whereas it on the other side possesses not a circular but a polygonal section in order to hold the plastic mass more firmly during the operation.

The former 13 is fixed to the bar 11 of a former holder which is placed with its end plates 10 between bars 3 on the side supports.

The former holder can be adjusted in two different positions. In the position indicated in Figs. 1 and 2, the former is vertical and the former holder can be pushed to and fro between bars 8. If during this to and fro movement the shaft 4 surrounded by the plastic mass be normally stationary, but turned by a given amount between each stroke of the former, angular or polygonal bodies are produced of a form determined by the outline of the former.

In the position shown in Fig. 3, the former is placed inclined and the former holder is'fiXed by means of pins 12 engaging in recesses. If, therefore, the shaft 4 surrounded with plastic material is continuously rotated by means of the handle 6, round bodies will be produced. The former holder does not need to be held fast in the position shown in Fig. 3, so that the operator has both hands free, and moreover the sloping position of the former makes it possible to effect a still better removal of the plastic mass, which during the rotation is automatically pushed up upon the former. The former 13 is attached to the bar 11 of the former holder by means of screws 15 which pass through slots 14. It can therefore' be adjusted in its height according to the thickness of the body to be formed.

If instead of round or polygonal bodies by means of the present invention flat or profile bodies, such as cornices or the like, are to be formed, then beneath the former between the bars there is inserted a fiat plate 16, upon which the plastic mass is placed, and upon which the flat model is formed by moving the former to and fro.

WVhat I claim is:

1. In a forming machine adapted to produce solid bodies of given shape from plastic materials, a supporting frame, a rotatable shaft, a fixed shaft support on said frame, a pivoted shaft support on said frame, vertical guide bars on said frame, a former holder adapted to slide between said bars, and an adjustable former detachably secured to said former holder.

2. In a forming machine adapted to produce solid bodies of given shape from plastic materials, a supporting frame, a tapering rotatable shaft, a fixed shaft support on said frame, a pivoted shaft support on said frame, vertical guide bars on said frame, a former holder adapted to slide between said bars, and an angularly and vertically adjustable former detachably secured to said former holder.

3. In a forming machine adapted to produce solid bodies of given shape from plas tic materials, a supporting frame, a tapering rotatable shaft, a fixed shaft support on said frame, a pivoted shaft support on said frame, vertical guide bars on said frame, a former holder adapted to slide between said bars, the plate 16 adapted to support the plastic mass between the shaft supports, and an angularly and vertically adjustable former detachably secured to said former holder.

In testimony whereof I have signed my name to this specification in the presence of 15 two subscribing Witnesses.

\VILHELM SPILLER.

Witnesses:

HENRY HASPER, VOLDEMAR HAUrT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. C. 

